LINUX view hardware configuration commands

System

uname -a # View kernel/operating system/CPU information

cat /etc/issue # View operating system version

cat /proc/cpuinfo # View CPU information

hostname # View computer name

lspci - tv # List all PCI devices

lsusb -tv # List all USB devices

lsmod # List loaded kernel modules

env # View environment variables

resources

free -m # View memory usage and swapping Area usage

df -h # Check the usage of each partition

du -sh # Check the size of the specified directory

grep MemTotal /proc/meminfo # Check the total memory

grep MemFree /proc /meminfo # Check the amount of free memory

uptime # Check the system running time, number of users, and load

cat /proc/loadavg # View system load

disks and partitions

mount | column -t # View attached partition status

fdisk -l # View all partitions www.2cto.com

swapon -s # View All swap partitions

hdparm -i /dev/hda # View disk parameters (only applicable to IDE devices)

dmesg | grep IDE # View the IDE device detection status at startup

Network

ifconfig # View the properties of all network interfaces

iptables -L # View firewall settings

route -n # View routing table

netstat -lntp # View all listening ports

netstat -antp # View all established connections

netstat -s # View network statistics

Process

ps -ef # View all processes

top # Display process status in real time

User

w # View active users

id # View specified user information

last # View user login log

cut -d: -f1 /etc/ passwd # View all users of the system

cut -d: -f1 /etc/group # View all groups of the system

crontab -l # View the current user’s scheduled tasks

services

chkconfig --list # List all system services

chkconfig --list | grep on # List all started system services

Programs

rpm -qa # View all installed software packages

Common commands are organized as follows:

Check the serial number of the motherboard: dmidecode | grep -i 'serial number'

View CPU information: cat /proc/cpuinfo or dmesg | grep -i 'cpu' or dmidecode -t processor

View memory information: cat /proc/meminfo [free -m][vmstat]

View board information: cat /proc/pci

View graphics card/sound card information: lspci |grep -i 'VGA'[dmesg | grep -i 'VGA']

View network card information: dmesg | grep -i 'eth'[cat /etc/sysconfig/hwconf | grep -i eth][lspci | grep -i 'eth']

View PCI information: lspci (more intuitive than cat /proc/pci)

View USB devices: cat /proc/bus/usb/devices

View keyboard and mouse: cat /proc/bus/input/devices

View system hard disk information and Usage: fdisk & disk – l & df

View the interrupt request (IRQ) of each device: cat /proc/interrupts

View the system architecture: uname -a